1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3 * (C) Copyright 2001
4 * Denis Peter, MPL AG Switzerland
5 *
6 * Part of this source has been derived from the Linux USB
7 * project.
8 */
9 #include <console.h>
10 #include <dm.h>
11 #include <env.h>
12 #include <errno.h>
13 #include <log.h>
14 #include <malloc.h>
15 #include <memalign.h>
16 #include <stdio_dev.h>
17 #include <time.h>
18 #include <watchdog.h>
19 #include <asm/byteorder.h>
20 #ifdef CONFIG_SANDBOX
21 #include <asm/state.h>
22 #endif
23
24 #include <usb.h>
25
26 /*
27 * USB vendor and product IDs used for quirks.
28 */
29 #define USB_VENDOR_ID_APPLE 0x05ac
30 #define USB_DEVICE_ID_APPLE_MAGIC_KEYBOARD_2021 0x029c
31 #define USB_DEVICE_ID_APPLE_MAGIC_KEYBOARD_FINGERPRINT_2021 0x029a
32 #define USB_DEVICE_ID_APPLE_MAGIC_KEYBOARD_NUMPAD_2021 0x029f
33
34 #define USB_VENDOR_ID_KEYCHRON 0x3434
35
36 #define USB_HID_QUIRK_POLL_NO_REPORT_IDLE BIT(0)
37
38 /*
39 * If overwrite_console returns 1, the stdin, stderr and stdout
40 * are switched to the serial port, else the settings in the
41 * environment are used
42 */
43 #ifdef CONFIG_SYS_CONSOLE_OVERWRITE_ROUTINE
44 extern int overwrite_console(void);
45 #else
overwrite_console(void)46 int overwrite_console(void)
47 {
48 return 0;
49 }
50 #endif
51
52 /* Keyboard sampling rate */
53 #define REPEAT_RATE 40 /* 40msec -> 25cps */
54 #define REPEAT_DELAY 10 /* 10 x REPEAT_RATE = 400msec */
55
56 #define NUM_LOCK 0x53
57 #define CAPS_LOCK 0x39
58 #define SCROLL_LOCK 0x47
59
60 /* Modifier bits */
61 #define LEFT_CNTR (1 << 0)
62 #define LEFT_SHIFT (1 << 1)
63 #define LEFT_ALT (1 << 2)
64 #define LEFT_GUI (1 << 3)
65 #define RIGHT_CNTR (1 << 4)
66 #define RIGHT_SHIFT (1 << 5)
67 #define RIGHT_ALT (1 << 6)
68 #define RIGHT_GUI (1 << 7)
69
70 /* Size of the keyboard buffer */
71 #define USB_KBD_BUFFER_LEN 0x20
72
73 /* Device name */
74 #define DEVNAME "usbkbd"
75
76 /* Keyboard maps */
77 static const unsigned char usb_kbd_numkey[] = {
78 '1', '2', '3', '4', '5', '6', '7', '8', '9', '0',
79 '\r', 0x1b, '\b', '\t', ' ', '-', '=', '[', ']',
80 '\\', '#', ';', '\'', '`', ',', '.', '/'
81 };
82 static const unsigned char usb_kbd_numkey_shifted[] = {
83 '!', '@', '#', '$', '%', '^', '&', '*', '(', ')',
84 '\r', 0x1b, '\b', '\t', ' ', '_', '+', '{', '}',
85 '|', '~', ':', '"', '~', '<', '>', '?'
86 };
87
88 static const unsigned char usb_kbd_num_keypad[] = {
89 '/', '*', '-', '+', '\r',
90 '1', '2', '3', '4', '5', '6', '7', '8', '9', '0',
91 '.', 0, 0, 0, '='
92 };
93
94 static const u8 usb_special_keys[] = {
95 #ifdef CONFIG_USB_KEYBOARD_FN_KEYS
96 '2', 'H', '5', '3', 'F', '6', 'C', 'D', 'B', 'A'
97 #else
98 'C', 'D', 'B', 'A'
99 #endif
100 };
101
102 /*
103 * NOTE: It's important for the NUM, CAPS, SCROLL-lock bits to be in this
104 * order. See usb_kbd_setled() function!
105 */
106 #define USB_KBD_NUMLOCK (1 << 0)
107 #define USB_KBD_CAPSLOCK (1 << 1)
108 #define USB_KBD_SCROLLLOCK (1 << 2)
109 #define USB_KBD_CTRL (1 << 3)
110
111 #define USB_KBD_LEDMASK \
112 (USB_KBD_NUMLOCK | USB_KBD_CAPSLOCK | USB_KBD_SCROLLLOCK)
113
114 struct usb_kbd_pdata {
115 unsigned long intpipe;
116 int intpktsize;
117 int intinterval;
118 unsigned long last_report;
119 struct int_queue *intq;
120
121 uint32_t ifnum;
122
123 uint32_t repeat_delay;
124
125 uint32_t usb_in_pointer;
126 uint32_t usb_out_pointer;
127 uint8_t usb_kbd_buffer[USB_KBD_BUFFER_LEN];
128
129 uint8_t *new;
130 uint8_t old[USB_KBD_BOOT_REPORT_SIZE];
131
132 uint8_t flags;
133 };
134
135 extern int __maybe_unused net_busy_flag;
136
137 /* The period of time between two calls of usb_kbd_testc(). */
138 static unsigned long kbd_testc_tms;
139
usb_kbd_remove_for_test(void)140 int usb_kbd_remove_for_test(void)
141 {
142 return console_remove_by_name(DEVNAME);
143 }
144
145 /* Puts character in the queue and sets up the in and out pointer. */
usb_kbd_put_queue(struct usb_kbd_pdata * data,u8 c)146 static void usb_kbd_put_queue(struct usb_kbd_pdata *data, u8 c)
147 {
148 if (data->usb_in_pointer == USB_KBD_BUFFER_LEN - 1) {
149 /* Check for buffer full. */
150 if (data->usb_out_pointer == 0)
151 return;
152
153 data->usb_in_pointer = 0;
154 } else {
155 /* Check for buffer full. */
156 if (data->usb_in_pointer == data->usb_out_pointer - 1)
157 return;
158
159 data->usb_in_pointer++;
160 }
161
162 data->usb_kbd_buffer[data->usb_in_pointer] = c;
163 }
164
165 /*
166 * Set the LEDs. Since this is used in the irq routine, the control job is
167 * issued with a timeout of 0. This means, that the job is queued without
168 * waiting for job completion.
169 */
usb_kbd_setled(struct usb_device * dev)170 static void usb_kbd_setled(struct usb_device *dev)
171 {
172 struct usb_kbd_pdata *data = dev->privptr;
173 struct usb_interface *iface = &dev->config.if_desc[data->ifnum];
174 ALLOC_ALIGN_BUFFER(uint32_t, leds, 1, USB_DMA_MINALIGN);
175
176 *leds = data->flags & USB_KBD_LEDMASK;
177 usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
178 USB_REQ_SET_REPORT, USB_TYPE_CLASS | USB_RECIP_INTERFACE,
179 0x200, iface->desc.bInterfaceNumber, leds, 1, 0);
180 }
181
182 #define CAPITAL_MASK 0x20
183 /* Translate the scancode in ASCII */
usb_kbd_translate(struct usb_kbd_pdata * data,unsigned char scancode,unsigned char modifier,int pressed)184 static int usb_kbd_translate(struct usb_kbd_pdata *data, unsigned char scancode,
185 unsigned char modifier, int pressed)
186 {
187 uint8_t keycode = 0;
188
189 /* Key released */
190 if (pressed == 0) {
191 data->repeat_delay = 0;
192 return 0;
193 }
194
195 if (pressed == 2) {
196 data->repeat_delay++;
197 if (data->repeat_delay < REPEAT_DELAY)
198 return 0;
199
200 data->repeat_delay = REPEAT_DELAY;
201 }
202
203 /* Alphanumeric values */
204 if ((scancode > 3) && (scancode <= 0x1d)) {
205 keycode = scancode - 4 + 'a';
206
207 if (data->flags & USB_KBD_CAPSLOCK)
208 keycode &= ~CAPITAL_MASK;
209
210 if (modifier & (LEFT_SHIFT | RIGHT_SHIFT)) {
211 /* Handle CAPSLock + Shift pressed simultaneously */
212 if (keycode & CAPITAL_MASK)
213 keycode &= ~CAPITAL_MASK;
214 else
215 keycode |= CAPITAL_MASK;
216 }
217 }
218
219 if ((scancode > 0x1d) && (scancode < 0x39)) {
220 /* Shift pressed */
221 if (modifier & (LEFT_SHIFT | RIGHT_SHIFT))
222 keycode = usb_kbd_numkey_shifted[scancode - 0x1e];
223 else
224 keycode = usb_kbd_numkey[scancode - 0x1e];
225 }
226
227 /* Numeric keypad */
228 if ((scancode >= 0x54) && (scancode <= 0x67))
229 keycode = usb_kbd_num_keypad[scancode - 0x54];
230
231 if (data->flags & USB_KBD_CTRL)
232 keycode = scancode - 0x3;
233
234 if (pressed == 1) {
235 if (scancode == NUM_LOCK) {
236 data->flags ^= USB_KBD_NUMLOCK;
237 return 1;
238 }
239
240 if (scancode == CAPS_LOCK) {
241 data->flags ^= USB_KBD_CAPSLOCK;
242 return 1;
243 }
244 if (scancode == SCROLL_LOCK) {
245 data->flags ^= USB_KBD_SCROLLLOCK;
246 return 1;
247 }
248 }
249
250 /* Report keycode if any */
251 if (keycode) {
252 debug("%c", keycode);
253 usb_kbd_put_queue(data, keycode);
254 return 0;
255 }
256
257 #ifdef CONFIG_USB_KEYBOARD_FN_KEYS
258 if (scancode < 0x3a || scancode > 0x52 ||
259 scancode == 0x46 || scancode == 0x47)
260 return 1;
261
262 usb_kbd_put_queue(data, 0x1b);
263 if (scancode < 0x3e) {
264 /* F1 - F4 */
265 usb_kbd_put_queue(data, 0x4f);
266 usb_kbd_put_queue(data, scancode - 0x3a + 'P');
267 return 0;
268 }
269 usb_kbd_put_queue(data, '[');
270 if (scancode < 0x42) {
271 /* F5 - F8 */
272 usb_kbd_put_queue(data, '1');
273 if (scancode == 0x3e)
274 --scancode;
275 keycode = scancode - 0x3f + '7';
276 } else if (scancode < 0x49) {
277 /* F9 - F12 */
278 usb_kbd_put_queue(data, '2');
279 if (scancode > 0x43)
280 ++scancode;
281 keycode = scancode - 0x42 + '0';
282 } else {
283 /*
284 * INSERT, HOME, PAGE UP, DELETE, END, PAGE DOWN,
285 * RIGHT, LEFT, DOWN, UP
286 */
287 keycode = usb_special_keys[scancode - 0x49];
288 }
289 usb_kbd_put_queue(data, keycode);
290 if (scancode < 0x4f && scancode != 0x4a && scancode != 0x4d)
291 usb_kbd_put_queue(data, '~');
292 return 0;
293 #else
294 /* Left, Right, Up, Down */
295 if (scancode > 0x4e && scancode < 0x53) {
296 usb_kbd_put_queue(data, 0x1b);
297 usb_kbd_put_queue(data, '[');
298 usb_kbd_put_queue(data, usb_special_keys[scancode - 0x4f]);
299 return 0;
300 }
301 return 1;
302 #endif /* CONFIG_USB_KEYBOARD_FN_KEYS */
303 }
304
usb_kbd_service_key(struct usb_device * dev,int i,int up)305 static uint32_t usb_kbd_service_key(struct usb_device *dev, int i, int up)
306 {
307 uint32_t res = 0;
308 struct usb_kbd_pdata *data = dev->privptr;
309 uint8_t *new;
310 uint8_t *old;
311
312 if (up) {
313 new = data->old;
314 old = data->new;
315 } else {
316 new = data->new;
317 old = data->old;
318 }
319
320 if ((old[i] > 3) &&
321 (memscan(new + 2, old[i], USB_KBD_BOOT_REPORT_SIZE - 2) ==
322 new + USB_KBD_BOOT_REPORT_SIZE)) {
323 res |= usb_kbd_translate(data, old[i], data->new[0], up);
324 }
325
326 return res;
327 }
328
329 /* Interrupt service routine */
usb_kbd_irq_worker(struct usb_device * dev)330 static int usb_kbd_irq_worker(struct usb_device *dev)
331 {
332 struct usb_kbd_pdata *data = dev->privptr;
333 int i, res = 0;
334
335 /* No combo key pressed */
336 if (data->new[0] == 0x00)
337 data->flags &= ~USB_KBD_CTRL;
338 /* Left or Right Ctrl pressed */
339 else if ((data->new[0] == LEFT_CNTR) || (data->new[0] == RIGHT_CNTR))
340 data->flags |= USB_KBD_CTRL;
341
342 for (i = 2; i < USB_KBD_BOOT_REPORT_SIZE; i++) {
343 res |= usb_kbd_service_key(dev, i, 0);
344 res |= usb_kbd_service_key(dev, i, 1);
345 }
346
347 /* Key is still pressed */
348 if ((data->new[2] > 3) && (data->old[2] == data->new[2]))
349 res |= usb_kbd_translate(data, data->new[2], data->new[0], 2);
350
351 if (res == 1)
352 usb_kbd_setled(dev);
353
354 memcpy(data->old, data->new, USB_KBD_BOOT_REPORT_SIZE);
355
356 return 1;
357 }
358
359 /* Keyboard interrupt handler */
usb_kbd_irq(struct usb_device * dev)360 static int usb_kbd_irq(struct usb_device *dev)
361 {
362 if ((dev->irq_status != 0) ||
363 (dev->irq_act_len != USB_KBD_BOOT_REPORT_SIZE)) {
364 debug("USB KBD: Error %lX, len %d\n",
365 dev->irq_status, dev->irq_act_len);
366 return 1;
367 }
368
369 return usb_kbd_irq_worker(dev);
370 }
371
372 /* Interrupt polling */
usb_kbd_poll_for_event(struct usb_device * dev)373 static inline void usb_kbd_poll_for_event(struct usb_device *dev)
374 {
375 #if defined(CONFIG_SYS_USB_EVENT_POLL)
376 struct usb_kbd_pdata *data = dev->privptr;
377
378 /* Submit an interrupt transfer request */
379 if (usb_int_msg(dev, data->intpipe, &data->new[0],
380 data->intpktsize, data->intinterval, true) >= 0)
381 usb_kbd_irq_worker(dev);
382 #elif defined(CONFIG_SYS_USB_EVENT_POLL_VIA_CONTROL_EP) || \
383 defined(CONFIG_SYS_USB_EVENT_POLL_VIA_INT_QUEUE)
384 #if defined(CONFIG_SYS_USB_EVENT_POLL_VIA_CONTROL_EP)
385 struct usb_interface *iface;
386 struct usb_kbd_pdata *data = dev->privptr;
387 iface = &dev->config.if_desc[data->ifnum];
388 usb_get_report(dev, iface->desc.bInterfaceNumber,
389 1, 0, data->new, USB_KBD_BOOT_REPORT_SIZE);
390 if (memcmp(data->old, data->new, USB_KBD_BOOT_REPORT_SIZE)) {
391 usb_kbd_irq_worker(dev);
392 #else
393 struct usb_kbd_pdata *data = dev->privptr;
394 if (poll_int_queue(dev, data->intq)) {
395 usb_kbd_irq_worker(dev);
396 /* We've consumed all queued int packets, create new */
397 destroy_int_queue(dev, data->intq);
398 data->intq = create_int_queue(dev, data->intpipe, 1,
399 USB_KBD_BOOT_REPORT_SIZE, data->new,
400 data->intinterval);
401 #endif
402 data->last_report = get_timer(0);
403 /* Repeat last usb hid report every REPEAT_RATE ms for keyrepeat */
404 } else if (data->last_report != -1 &&
405 get_timer(data->last_report) > REPEAT_RATE) {
406 usb_kbd_irq_worker(dev);
407 data->last_report = get_timer(0);
408 }
409 #endif
410 }
411
412 /* test if a character is in the queue */
413 static int usb_kbd_testc(struct stdio_dev *sdev)
414 {
415 struct stdio_dev *dev;
416 struct usb_device *usb_kbd_dev;
417 struct usb_kbd_pdata *data;
418
419 /*
420 * Polling the keyboard for an event can take dozens of milliseconds.
421 * Add a delay between polls to avoid blocking activity which polls
422 * rapidly, like the UEFI console timer.
423 */
424 unsigned long poll_delay = CONFIG_SYS_HZ / 50;
425
426 #if defined(CONFIG_CMD_NET) && !defined(CONFIG_NET_LWIP)
427 /*
428 * If net_busy_flag is 1, NET transfer is running,
429 * then we check key-pressed every second (first check may be
430 * less than 1 second) to improve TFTP booting performance.
431 */
432 if (net_busy_flag)
433 poll_delay = CONFIG_SYS_HZ;
434 #endif
435
436 #ifdef CONFIG_SANDBOX
437 /*
438 * Skip delaying polls if a test requests it.
439 */
440 if (state_get_skip_delays())
441 poll_delay = 0;
442 #endif
443
444 dev = stdio_get_by_name(sdev->name);
445 usb_kbd_dev = (struct usb_device *)dev->priv;
446 data = usb_kbd_dev->privptr;
447
448 if (get_timer(kbd_testc_tms) >= poll_delay) {
449 usb_kbd_poll_for_event(usb_kbd_dev);
450 kbd_testc_tms = get_timer(0);
451 }
452
453 return !(data->usb_in_pointer == data->usb_out_pointer);
454 }
455
456 /* gets the character from the queue */
457 static int usb_kbd_getc(struct stdio_dev *sdev)
458 {
459 struct stdio_dev *dev;
460 struct usb_device *usb_kbd_dev;
461 struct usb_kbd_pdata *data;
462
463 dev = stdio_get_by_name(sdev->name);
464 usb_kbd_dev = (struct usb_device *)dev->priv;
465 data = usb_kbd_dev->privptr;
466
467 while (data->usb_in_pointer == data->usb_out_pointer) {
468 schedule();
469 usb_kbd_poll_for_event(usb_kbd_dev);
470 }
471
472 if (data->usb_out_pointer == USB_KBD_BUFFER_LEN - 1)
473 data->usb_out_pointer = 0;
474 else
475 data->usb_out_pointer++;
476
477 return data->usb_kbd_buffer[data->usb_out_pointer];
478 }
479
480 /* probes the USB device dev for keyboard type. */
481 static int usb_kbd_probe_dev(struct usb_device *dev, unsigned int ifnum)
482 {
483 struct usb_interface *iface;
484 struct usb_endpoint_descriptor *ep;
485 struct usb_kbd_pdata *data;
486 unsigned int quirks = 0;
487 int epNum;
488
489 if (dev->descriptor.bNumConfigurations != 1)
490 return 0;
491
492 iface = &dev->config.if_desc[ifnum];
493
494 if (iface->desc.bInterfaceClass != USB_CLASS_HID)
495 return 0;
496
497 if (iface->desc.bInterfaceSubClass != USB_SUB_HID_BOOT)
498 return 0;
499
500 if (iface->desc.bInterfaceProtocol != USB_PROT_HID_KEYBOARD)
501 return 0;
502
503 for (epNum = 0; epNum < iface->desc.bNumEndpoints; epNum++) {
504 ep = &iface->ep_desc[epNum];
505
506 /* Check if endpoint is interrupt IN endpoint */
507 if ((ep->bmAttributes & 3) != 3)
508 continue;
509
510 if (ep->bEndpointAddress & 0x80)
511 break;
512 }
513
514 if (epNum == iface->desc.bNumEndpoints)
515 return 0;
516
517 debug("USB KBD: found interrupt EP: 0x%x\n", ep->bEndpointAddress);
518
519 switch (dev->descriptor.idVendor) {
520 case USB_VENDOR_ID_APPLE:
521 case USB_VENDOR_ID_KEYCHRON:
522 quirks |= USB_HID_QUIRK_POLL_NO_REPORT_IDLE;
523 break;
524 default:
525 break;
526 }
527
528 data = malloc(sizeof(struct usb_kbd_pdata));
529 if (!data) {
530 printf("USB KBD: Error allocating private data\n");
531 return 0;
532 }
533
534 /* Clear private data */
535 memset(data, 0, sizeof(struct usb_kbd_pdata));
536
537 /* allocate input buffer aligned and sized to USB DMA alignment */
538 data->new = memalign(USB_DMA_MINALIGN,
539 roundup(USB_KBD_BOOT_REPORT_SIZE, USB_DMA_MINALIGN));
540
541 data->ifnum = ifnum;
542
543 /* Insert private data into USB device structure */
544 dev->privptr = data;
545
546 /* Set IRQ handler */
547 dev->irq_handle = usb_kbd_irq;
548
549 data->intpipe = usb_rcvintpipe(dev, ep->bEndpointAddress);
550 data->intpktsize = min(usb_maxpacket(dev, data->intpipe),
551 USB_KBD_BOOT_REPORT_SIZE);
552 data->intinterval = ep->bInterval;
553 data->last_report = -1;
554
555 /* We found a USB Keyboard, install it. */
556 debug("USB KBD: set boot protocol\n");
557 usb_set_protocol(dev, iface->desc.bInterfaceNumber, 0);
558
559 #if !defined(CONFIG_SYS_USB_EVENT_POLL_VIA_CONTROL_EP) && \
560 !defined(CONFIG_SYS_USB_EVENT_POLL_VIA_INT_QUEUE)
561 debug("USB KBD: set idle interval...\n");
562 usb_set_idle(dev, iface->desc.bInterfaceNumber, REPEAT_RATE / 4, 0);
563 #else
564 debug("USB KBD: set idle interval=0...\n");
565 usb_set_idle(dev, iface->desc.bInterfaceNumber, 0, 0);
566 #endif
567
568 /*
569 * Apple and Keychron keyboards do not report the device state. Reports
570 * are only returned during key presses.
571 */
572 if (quirks & USB_HID_QUIRK_POLL_NO_REPORT_IDLE) {
573 debug("USB KBD: quirk: skip testing device state\n");
574 return 1;
575 }
576 debug("USB KBD: enable interrupt pipe...\n");
577 #ifdef CONFIG_SYS_USB_EVENT_POLL_VIA_INT_QUEUE
578 data->intq = create_int_queue(dev, data->intpipe, 1,
579 USB_KBD_BOOT_REPORT_SIZE, data->new,
580 data->intinterval);
581 if (!data->intq) {
582 #elif defined(CONFIG_SYS_USB_EVENT_POLL_VIA_CONTROL_EP)
583 if (usb_get_report(dev, iface->desc.bInterfaceNumber,
584 1, 0, data->new, USB_KBD_BOOT_REPORT_SIZE) < 0) {
585 #else
586 if (usb_int_msg(dev, data->intpipe, data->new, data->intpktsize,
587 data->intinterval, false) < 0) {
588 #endif
589 printf("Failed to get keyboard state from device %04x:%04x\n",
590 dev->descriptor.idVendor, dev->descriptor.idProduct);
591 /* Abort, we don't want to use that non-functional keyboard. */
592 return 0;
593 }
594
595 /* Success. */
596 return 1;
597 }
598
599 static int probe_usb_keyboard(struct usb_device *dev)
600 {
601 char *stdinname;
602 struct stdio_dev usb_kbd_dev;
603 unsigned int ifnum;
604 unsigned int max_ifnum = min((unsigned int)USB_MAX_ACTIVE_INTERFACES,
605 (unsigned int)dev->config.no_of_if);
606 int error;
607
608 /* Try probing the keyboard */
609 for (ifnum = 0; ifnum < max_ifnum; ifnum++) {
610 if (usb_kbd_probe_dev(dev, ifnum) == 1)
611 break;
612 }
613 if (ifnum >= max_ifnum)
614 return -ENOENT;
615
616 /* Register the keyboard */
617 debug("USB KBD: register.\n");
618 memset(&usb_kbd_dev, 0, sizeof(struct stdio_dev));
619 strcpy(usb_kbd_dev.name, DEVNAME);
620 usb_kbd_dev.flags = DEV_FLAGS_INPUT | DEV_FLAGS_DM;
621 usb_kbd_dev.getc = usb_kbd_getc;
622 usb_kbd_dev.tstc = usb_kbd_testc;
623 usb_kbd_dev.priv = (void *)dev;
624 error = stdio_register(&usb_kbd_dev);
625 if (error)
626 return error;
627
628 stdinname = env_get("stdin");
629 #if CONFIG_IS_ENABLED(CONSOLE_MUX)
630 if (strstr(stdinname, DEVNAME) != NULL) {
631 error = iomux_doenv(stdin, stdinname);
632 if (error)
633 return error;
634 }
635 #else
636 /* Check if this is the standard input device. */
637 if (!strcmp(stdinname, DEVNAME)) {
638 /* Reassign the console */
639 if (overwrite_console())
640 return 1;
641
642 error = console_assign(stdin, DEVNAME);
643 if (error)
644 return error;
645 }
646 #endif
647
648 return 0;
649 }
650
651 static int usb_kbd_probe(struct udevice *dev)
652 {
653 struct usb_device *udev = dev_get_parent_priv(dev);
654
655 return probe_usb_keyboard(udev);
656 }
657
658 static int usb_kbd_remove(struct udevice *dev)
659 {
660 struct usb_device *udev = dev_get_parent_priv(dev);
661 struct usb_kbd_pdata *data;
662 struct stdio_dev *sdev;
663 int ret;
664
665 sdev = stdio_get_by_name(DEVNAME);
666 if (!sdev) {
667 ret = -ENXIO;
668 goto err;
669 }
670 data = udev->privptr;
671 #if CONFIG_IS_ENABLED(CONSOLE_MUX)
672 if (iomux_replace_device(stdin, DEVNAME, "nulldev")) {
673 ret = -ENOLINK;
674 goto err;
675 }
676 #endif
677 if (stdio_deregister_dev(sdev, true)) {
678 ret = -EPERM;
679 goto err;
680 }
681 #ifdef CONFIG_SYS_USB_EVENT_POLL_VIA_INT_QUEUE
682 destroy_int_queue(udev, data->intq);
683 #endif
684 free(data->new);
685 free(data);
686
687 return 0;
688 err:
689 printf("%s: warning, ret=%d", __func__, ret);
690 return ret;
691 }
692
693 static const struct udevice_id usb_kbd_ids[] = {
694 { .compatible = "usb-keyboard" },
695 { }
696 };
697
698 U_BOOT_DRIVER(usb_kbd) = {
699 .name = "usb_kbd",
700 .id = UCLASS_KEYBOARD,
701 .of_match = usb_kbd_ids,
702 .probe = usb_kbd_probe,
703 .remove = usb_kbd_remove,
704 };
705
706 static const struct usb_device_id kbd_id_table[] = {
707 {
708 .match_flags = USB_DEVICE_ID_MATCH_INT_CLASS |
709 USB_DEVICE_ID_MATCH_INT_SUBCLASS |
710 USB_DEVICE_ID_MATCH_INT_PROTOCOL,
711 .bInterfaceClass = USB_CLASS_HID,
712 .bInterfaceSubClass = USB_SUB_HID_BOOT,
713 .bInterfaceProtocol = USB_PROT_HID_KEYBOARD,
714 },
715 {
716 USB_DEVICE(USB_VENDOR_ID_APPLE,
717 USB_DEVICE_ID_APPLE_MAGIC_KEYBOARD_2021),
718 },
719 {
720 USB_DEVICE(USB_VENDOR_ID_APPLE,
721 USB_DEVICE_ID_APPLE_MAGIC_KEYBOARD_FINGERPRINT_2021),
722 },
723 {
724 USB_DEVICE(USB_VENDOR_ID_APPLE,
725 USB_DEVICE_ID_APPLE_MAGIC_KEYBOARD_NUMPAD_2021),
726 },
727 { } /* Terminating entry */
728 };
729
730 U_BOOT_USB_DEVICE(usb_kbd, kbd_id_table);
731